21
Installing the Motherboard
Please make sure that the USB cable has the same pin assignment as indi-
cated above. A different pin assignment may cause damage or system hang-
up.
F_USB1~2: Front Panel USB 2.0 header
The motherboard has two USB2.0 headers supporting four USB 2.0 ports. Addition-
ally, some computer cases have USB 2.0 ports at the front of the case. If you have
this kind of case, use auxiliary USB connector to connect the front-mounted ports to
the motherboard.
1
USBPWR
Front Panel USB Power
2
USBPWR
Front Panel USB Power
3
DATA12-
USB Port 12 Negative Signal
4
DATA13-
USB Port 13 Negative Signal
5
USB Port 12 Positive Signal
6
USB Port 13 Positive Signal
7
GND
Ground
8
GND
Ground
9
NC Not connected
10
USB DET USB DET
Pin
Signal Name Function
TPM: Trusted Platform Module header
Trusted platform module (TPM) is a published specification detailing a microcontroller
that can store secured information, and implementations of that specification.
1
LCLK
11
LAD0
2
GND
12
GND
3
LFRAME#
13
RSV0
4
KEY
14
RSV1
5
LRESET#
15
3VSB
6
VCC5
16
SERIRQ
7
LAD3
17
GND
8
LAD2
18
CLKRUN#
9
VCC 3.3
19
LPCPD#
10
LAD1
20
RSV2
Pin
Signal Name Pin Signal Name